Watch repair tools from circular rubber, water resistant, oil resistant, watch case, bottom, gasket seal, from outside, cover

Back case for watch repair tools, circular ring rubber gasket for watchmaker, made of rubber from the back, for estimating the lifespan. Specifications: materials: rubber, box size: * please * ring diameter: waterproof resistance: from from from from from from from, water ring size: * × 16, × 18, × 20, × 21, × 21, × 23, × 24, × 26, × 27, × 27, × 30, × 16, × 17, × 20, × 20, × 22, × 23, × 24, × 24, × 25, × 26, × 6x28. Package includes: rubber gasket * * features: watch gasket rubber washer is used to keep the watch waterproof. made of rubber, flexible, wear-resistant, and durable. includes parts to meet your different needs. an ideal replacement for the watch back cover sealing gasket. suitable for watchmakers and repairers.